16 hmo 3yog ib qho qis- alloy steel nrog molybdenum ntxiv, feem ntau yog siv hauv cov hlab ntsha siab, boilers, thiab cov kav dej ua haujlwm ntawm qhov kub siab. Nws muaj kev nkag siab zoo thiab lub zog thermal, thiab feem ntau muab nkag rau hauv lub cev los yog normalized thiab tempered mob. Vuam feem ntau yuav tsum tau preheating thiab post-welding tshav kub kev kho mob kom tsis txhob txias cracking thiab xyuas kom meej txhua yam khoom.
16Mo3 - Tshuaj muaj pes tsawg leeg
|
Element |
Tus nqi% |
Element |
Tus nqi% |
|
C |
0.12/0.20 |
Ni |
0.30 |
|
Si |
0.35 |
Nb |
- |
|
Mn |
0.40/0.90 |
Ti |
- |
|
P |
0.025 |
V |
- |
|
S |
0.010 |
Al |
- |
|
Cr |
0.030 |
N |
0.012 |
|
Mo |
0.25/0.35 |
Cu |
0.30 |
16Mo3 - Mechanical Properties
| Qib |
Thickness |
Kub (degree) |
|||||||||
|
50 |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
||
|
(mm) |
MPa |
MPa |
MPa |
MPa |
MPa |
MPa |
MPa |
MPa |
MPa |
MPa |
|
| 16 hmo 3 |
Tsawg dua los yog sib npaug li 16 |
273 |
264 |
250 |
233 |
213 |
194 |
175 |
159 |
147 |
141 |
|
|
>16 Tsawg dua lossis sib npaug li 40 |
268 |
259 |
245 |
228 |
209 |
190 |
172 |
156 |
145 |
139 |
|
|
>40 Tsawg dua los yog sib npaug rau 60 |
258 |
250 |
236 |
220 |
202 |
183 |
165 |
150 |
139 |
134 |
|
|
>60 Tsawg dua los yog sib npaug rau 100 |
238 |
230 |
218 |
203 |
186 |
169 |
153 |
139 |
129 |
123 |
|
|
>100 Tsawg dua los yog sib npaug rau 150 |
218 |
211 |
200 |
186 |
171 |
155 |
140 |
127 |
118 |
113 |
|
|
>150 Tsawg dua los yog sib npaug rau 250 |
208 |
202 |
191 |
178 |
163 |
148 |
134 |
121 |
113 |
108 |
Daim ntawv thov
• Boiler Cheebtsam: Siv rau hauv headers, nruas, thiab superheater qhov chaw uas qhov kub thiab txias tsis tu ncua.
• Cov hlab ntsha siab: Siv nyob rau hauv reactors thiab cia tank rau cov kua kub thiab gases nyob rau hauv tshuaj thiab petrochemical nroj tsuag.
• Thaum tshav kub kub exchangers: Siv rau hauv cov raj thiab cov plhaub uas ua cov txheej txheem kub.
• Piping systems: Ua haujlwm nyob rau hauv siab - cov kav dej kub uas thauj cov pa lossis cov kua dej kub hauv cov chaw tsim hluav taws xob thiab cov chaw tsim khoom.
• Muaj cua sov: Siv rau hauv qhov cub thiab cua sov-cov qauv tiv thaiv uas ua haujlwm nyob rau hauv lub sijhawm ntev thermal load.
Cov Cai Thov
• Kub kub siab: Ua tau zoo hauv kev pabcuam txuas ntxiv ntawm qhov kub uas cov pa roj carbon zoo tib yam yuav poob lub zog lossis raug kev txom nyem deformation.
• Nruab nrab mus rau siab: Tsim nyog rau siab- muaj cov khoom siv uas muaj kev sib txuam nrog thermal loading.
• Ntev - lub sij hawm thermal raug: Muaj peev xwm tiv taus cua sov ntev yam tsis muaj kev puas tsuaj loj, ua rau nws zoo tagnrho rau cov boilers thiab cov cua kub exchangers.
• Corrosive thiab oxidizing ib puag ncig: Resistant oxidation thiab dav corrosion nyob rau hauv ntau industrial atmospheres, tshwj xeeb tshaj yog nyob rau hauv chav thiab kub daim ntaub ntawv.
• Cyclic thermal tej yam kev mob: Ua kom muaj zog thiab qaug zog ua haujlwm nyob rau hauv cov cua sov thiab cua txias uas muaj nyob rau hauv kev tsim hluav taws xob thiab cov txheej txheem cov nroj tsuag.
• Welded fabrication ib puag ncig: Yuav tsum tau tswj xyuas preheating thiab tom qab-weld kho cua sov kom tsis txhob txias cracking thiab xyuas kom meej suab pob qij txha nyob rau hauv tuab seem.
Kev ua haujlwm
• Cua sov thiab tsim: Cov hlau yuav tsum tau rhuab sib npaug mus rau qhov kev pom zoo ua ntej ua haujlwm kub kom ntseeg tau zoo ductility thiab tiv thaiv kev tawg. Tom qab kev tsim, kev tswj cua txias pab tswj qhov xav tau microstructure thiab txhua yam khoom.
• Kev kho cua sov: 16Mo3 feem ntau muab nkag rau hauv qhov kev ua haujlwm zoo lossis ua kom zoo thiab ua kom sov. Normalization refines cov qauv nplej, thaum tempering txhim kho toughness thiab txo cov kev ntxhov siab sab hauv, ua rau cov khoom tsim nyog rau siab - qhov kub thiab txias.
• Tshuab dhos: Cov hlau tuaj yeem ua tshuab siv cov txheej txheem, tab sis nws lub zog thiab hardness yuav xav tau cov cuab yeej tsim nyog thiab txiav nrawm. Kev lubrication thiab txias kom zoo pab txo cov cuab yeej hnav thiab tswj kom zoo.
• Vuam: Vuam 16Mo3 yuav tsum tau tswj cov txheej txheem nruj. Preheating feem ntau yog tsim nyog los txo qhov kev pheej hmoo ntawm qhov txias txias, tshwj xeeb tshaj yog nyob rau hauv cov seem tuab. Tom qab-weld kev kho cua sov feem ntau yog siv los txo cov kev ntxhov siab uas seem, txhim kho cov tawv nqaij hauv tshav kub- thaj tsam cuam tshuam, thiab xyuas kom cov kev sib koom ua tau zoo nyob rau hauv thermal loading.
• Ntxuav thiab tshuaj xyuas: Ua ntej thiab tom qab ua tiav, cov khoom siv yuav tsum tau muab ntxuav kom tshem tawm cov nplai, roj, thiab cov kab mob uas tuaj yeem cuam tshuam rau kev vuam zoo lossis kev pabcuam. Tsis yog-kev kuaj kev puas tsuaj feem ntau yog siv los kuaj xyuas qhov tsis xws luag hauv ob qho tib si hauv paus thiab cov pob qij txha welded.
Yog tias koj xav paub ntxiv txog GNEE cov khoom, koj tuaj yeem xa email rau beam@gneesteelgroup.com. Peb zoo siab tshaj los pab koj.
16Mo3 steel feem ntau siv rau dab tsi?
16Mo3 yog cov pa roj carbon-manganese- molybdenum alloy hlau tsuas yog siv hauv cov hlab ntsha siab, boilers, thiab cov kav dej. Nws ua tau zoo ntawm - kub thiab siab - siab ua haujlwm, ua rau nws tsim nyog rau cov nroj tsuag hluav taws xob thiab kev lag luam petrochemical.
Dab tsi yog cov khoom tseem ceeb ntawm 16Mo3 steel?
Cov khoom tseem ceeb muaj xws li cov pa roj carbon (0.14-0.20%), manganese (0.70-1.00%), molybdenum (0.25-0.35%), silicon (0.15-0.35%), thiab taug qab cov phosphorus thiab sulfur, kom nws cov cua sov thiab corrosion kuj.
Dab tsi yog qhov tsawg kawg nkaus tensile lub zog ntawm 16Mo3 steel?
Qhov tsawg kawg nkaus tensile lub zog ntawm 16Mo3 steel yog 410 MPa. Cov cuab yeej no ua rau nws tuaj yeem tiv taus siab thiab cov khoom siv kho tshuab, uas yog ib qho tseem ceeb rau nws daim ntawv thov hauv siab- cov khoom siv bearing.
Dab tsi yog qhov yield zog ntau ntawm 16Mo3 steel?
Lub zog tawm los ntawm 16Mo3 steel yog li ntawm 245 MPa txog 355 MPa, nyob ntawm seb lub xeev kho cua sov. Qhov ntau yam no ua kom zoo ductility thiab thauj khoom -cov kabmob muaj peev xwm hauv ntau yam kev ua haujlwm.
Puas yog 16Mo3 steel haum rau siab - qhov chaw kub?
Yog lawm, 16Mo3 yog qhov zoo tagnrho rau qhov siab - qhov kub thiab txias. Nws khaws cov khoom zoo heev ntawm qhov kub txog li 530 degree, tiv thaiv kev nkag thiab oxidation, yog li dav siv nyob rau hauv siab - kub boiler qhov chaw.
Cov txheej txheem kho cua sov dab tsi yog 16Mo3 steel feem ntau raug rau?
16Mo3 feem ntau yog normalized lossis normalized thiab tempered. Normalization txhim kho nws cov microstructure uniformity, thaum tempering txhim kho toughness thiab txo brittleness, ua kom ruaj khov.
16Mo3 steel puas tuaj yeem welded yooj yim?
Yog lawm, 16Mo3 muaj qhov zoo weldability. Preheating kom raug (100-150 degree) thiab kev kho cua sov tom qab vuam raug pom zoo kom tsis txhob muaj qhov kub thiab txias thiab ua kom lub vuam sib txuas lub zog thiab tawv.
Qhov kev pabcuam siab tshaj plaws ntawm 16Mo3 steel yog dab tsi?
Qhov siab tshaj plaws kev pabcuam kub ntawm 16Mo3 steel yog nyob ib ncig ntawm 530 degree. Tshaj li qhov ntsuas kub no, nws cov khoom siv kho tshuab tuaj yeem degrade, cuam tshuam rau kev nyab xeeb ntawm cov khoom siv.
Dab tsi yog cov qauv 16Mo3 steel ua raws?
16Mo3 steel ua raws li European tus qauv EN 10028-2. Cov txheej txheem no qhia txog cov kev xav tau ntawm cov hlab ntsha siab, nrog rau cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab kev kho cua sov.
Dab tsi yog qhov elongation tus nqi ntawm 16Mo3 steel?
Qhov tsawg kawg nkaus elongation tus nqi ntawm 16Mo3 steel yog 22% (hauv 200 hli ntsuas qhov ntev). Qhov siab elongation no ua kom zoo ductility, tso cai rau cov hlau kom deform yam tsis muaj kev tawg.